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Class 57/278 - Strand manipulation


Subclass of Class 57 - Textiles: spinning, twisting, and twining
Definition: Subject matter wherein the preparation includes engaging
No. of patents: 49
Last issue date: 11/21/2006


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NumberTitleIssue Date
7138167Preform precursor for fiber-reinforced composite material, preform for fiber-reinforced composite material, and method of manufacturing the precursor and the preform
A preform for a fiber-reinforced composite material including a bent portion along a curved line for bending, a flange portion corresponding to an outer circumferential portion, and a semi-cylindrical portion formed by bending an inner circumferential portion along ...
11/21/2006
6418705Method of automatically separating a roving upon removal of a bobbin from a roving frame
To improve the breaking of a roving between a pressing finger bed and a fully wound bobbin preliminary to a bobbin change, the roving is initially wound around the tube above the upper cone and an unwound roving reserve is formed from at least a half turn...
07/16/2002
6276122Apparatus for the guidance of thread in a spinning station
The invention concerns an apparatus for the guidance of a spun thread in a spinning station, wherein, after the thread has been produced, it runs in its travel direction through a withdrawal device, a measuring instrument, and a traversing apparatus. The ...
08/21/2001
6082658Method of and apparatus for winding roving bobbins
The roving slubbing at the conclusion of winding of a roving bobbin in a flyer type machine is passed in a descending spiral around the cylindrical body bobbin and then onto the lower winding cone, after it is looped in an overwinding onto the winding tub...
07/04/2000
5992790Method of finishing reels
A method of finishing a reel of wound yarn with a tail end of yarn hanging from the reel can prevent the tail end from becoming caught up and thus unwinding considerable lengths of yarn from the reel and comprises the steps of unwinding a predetermined le...
11/30/1999
5850729Apparatus for detaching the terminal spiral windings from the surface of a spinning cop
An apparatus for detaching the terminal spiral winding of yarn from the surface of a spinning cop, utilizes a hook-like yarn catcher element movable vertically along the cop by a pulling device and movable into and out of engagement with the yarn surface ...
12/22/1998
5802834Method for threading yarns of two supply bobbins positioned coaxially atop one another in a two-for-one twisting spindle through the two-part hollow spindle axle
In a method for threading yarns of two supply bobbins positioned coaxially one atop the other in a two-for-one twisting spindle through at two-part hollow spindle axle and a yarn guide channel of a yarn storage disk with a compressed-air operated injectio...
09/08/1998
5694756Process and device to stop an open-end rotor spinning device
When an open-end rotor spinning device is stopped, a short yarn end is produced. For this, and in synchronization with the interruption of fiber feeding to the opener device (116), the fibers which continue to be combed out of the leading end of the fiber...
12/09/1997
5681000Servicing apparatus for a yarn package-producing textile machine
A servicing apparatus for automatic repair of yarn breaks in open-end spinning machines is provided with a device for replacing finished yarn packages with empty tubes, and a multi-functional yarn manipulating element having a work head equipped with a ya...
10/28/1997
5586428Roving bobbin changing method and apparatus for spinning machine
Provided for a spinning machine, a roving bobbin changing apparatus which includes a roving end finding/pick-up section equipped with a roving end finding/pick-up mechanism at a leading side as viewed in a direction in which the roving bobbin changing app...
12/24/1996
5575141Process for breaking yarn for the automatic removal of bobbins from banks of spindles and presser finger for practicing this process
A process for breaking yarn during the automatic removal of bobbins from banks of spindles, permitting the operator to grip the end of the yarn at the base of the bobbin (1) and guaranteeing good retention of the yarn during handling of the bobbin (1), th...
11/19/1996
5562268Yarn cutting assembly for a ring spinning or a yarn twisting spindle
Frustoconical portions of a blade blank are ground only along their external periphery so that the grounds are cylindrical. The frustoconical portion form openings as well as of 20° to 30° with the generatrix of the cylinder. The blades can be ground a ...
10/08/1996
5535581Sliver cans exchanging system and sliver piecing system
A cans exchanging system whereby, out of cans arranged in plural rows in the longitudinal direction of a spinning frame, plural empty cans arranged in the direction orthogonal to the longitudinal direction of the spinning frame are carried out from the ro...
07/16/1996
5524428Method and apparatus for separating the roving wound on packages from the flyers of a roving frame or the like, and for securing the roving end to the packages before doffing
To secure the end of the roving (5) to packages (9) before their doffing from a roving frame, it is proposed to initially raise the package support carriage (2) into a position such that the lower end (4a) of the tubes (4) is at the level of the compresso...
06/11/1996
5490375Method of respinning using ancillary yarn
The invention relates to a method of respinning-in in open-end spinning machines after a bobbin removal from the swinging arms (51, 52) of the bobbin holder (5) or at the beginning of spinning at an empty spinning station, and to a device for carrying out...
02/13/1996
5452571Winder-to-double twister connecting system
A winder-to-double twister connecting system, which comprises a yarn end picking device for picking out a yarn end from a package set on a tray, a package lifter for inserting a two-piled empty bobbin mounting adapter received from an overhead conveyor, i...
09/26/1995
5426929Method and apparatus for forming a yarn reserve on a cross-wound bobbin
A method for forming a yarn reserve on an end surface of a cross-wound bobbin or cheese disposed on a bobbin tube includes predetermining a length of yarn for a yarn reserve. The yarn is unwound to the predetermined length from a cheese while temporarily ...
06/27/1995
5396758Method of respinning-in on open-end spinning machines and a device for carrying out the method
In an open-end spinning machine, an empty tube is placed between the holder swinging arms of a bobbin holder of a spinning station at rest. An ancillary yarn is inserted and gripped at one end between one of the swinging arms and the edge of the tube. The...
03/14/1995
5390483Traveler changing method and traveler changing apparatus for carrying out the same
A traveler changing method and an apparatus for carrying out the same capable of automatic traveler changing operation for labor saving. The traveler changing method comprises steps of positioning a traveler at a predetermined position on a ring by turnin...
02/21/1995
5343687Winder-to-double twister connecting system
A winder-to-double twister connecting system, which comprises a yarn end picking device for picking out a yarn end from a package set on a tray, a package lifter for inserting a two-piled empty bobbin mounting adapter received from an overhead conveyor, i...
09/06/1994
5331799System for cutting roving in a spinning machine
After forming a package on a spindle from a roving fed to the spindle through a rotatable flyer finger, feed of the roving is stopped to arrest the flyer in a position with the finger anywhere on the package underneath the upper end of the last layer of t...
07/26/1994
5323597Sytem for exchanging roving bobbins applied to a ring spinning frame
A bobbin exchange system applied to a ring spinning frame provided with a unique creel mechanism, wherein a pair of parallel rails is provided for supporting respective bobbin carriages. Each bobbin carriage is provided with two alignments of bobbin hange...
06/28/1994
5313775Apparatus and method for automatic thread joining and cleaning in a spinning machine
In a textile spinning machine, apparatus for automatically joining a thread and cleaning the machine comprising a tube mechanism, a mechanism for routing a flow of air through the tube mechanism and controlling the rate of air flow through the tube mechan...
05/24/1994
5303538Device and procedure for preparing the thread end to start or resume open-end spinning
The thread end to be used for rejoining in an open-end spinning frame is prepared by cutting it to size and then introducing it into a pipe with a vigorous air flow running through the pipe and contacting the thread end with a vibrating blade, freeing the...
04/19/1994
5295347Process and an arrangement for the strenghtening of an end portion of a yarn
For the strengthening of an end portion of a yarn which extends on a spinning station of a spinning machine between a stopped spool package and a suction withdrawal device assigned to the spinning station, the yarn which projects into the withdrawal devic...
03/22/1994
5293738Device for picking up and preparing the skein end for rejoining in an open-end spinning machine
An apparatus for delivering a skein end of a thread wound on a reel to an apparatus for returning the skein end to a spinning machine. The apparatus for delivering the skein end comprises a device for unwinding a reel on which the thread is wound, a captu...
03/15/1994
5284010Method for doffing a yarn winding machine
A method for the doffing of a yarn winding machine which is composed of several side-by-side winding stations, and wherein identical packages having the same build and yarn length are produced on the several stations. The doffing procedure includes the si...
02/08/1994
5239814Creel mechanism for a ring spinning frame provided with displaceable roving guides
In a ring spinning frame provided with two parallel alignments of bobbin hangers, a plurality of roving guides is arranged in an alignment at an intermediate position between the two alignments of bobbin hangers, wherein a first group of roving guides is ...
08/31/1993
5179828Spinning machine having a doffing arrangement
In a case of a spinning machine having a plurality of spinning positions and having a package spool changing arrangement or doffing arrangement which can be applied to the individual spinning positions, it is provided that the doffing arrangement comprise...
01/19/1993
5167114Arrangement for producing spool packages used as feeding packages for twisting
An arrangement for producing spool packages serving as feeding packages for twisting, having a control apparatus for interrupting the operation. Sliver detectors arranged in front of drafting units are connected to the control apparatus. At least one yarn...
12/01/1992
5148664Method for starting operation of two-for-one twister after doffing
A method for starting an operation of a two-for-one twister after doffing. It includes steps of turning a spindle for a specific period of time before or while the yarn end from a feed yarn package side is held and wound on a paper tube by a suction pipe,...
09/22/1992
5136833Method and apparatus for removing yarn package and transport adapter from a spindle assembly of a yarn processing machine and securing the free end portion of yarn for transport
For an automated removal of a package and transport adapter with a hollow core, on which at least one empty winding tube or a winding tube holding a residual length of yarn is inserted, from a yarn processing station, in particular from the protective pot...
08/11/1992
5113645Textile machine service unit having a roving end extending apparatus
A bobbin exchange apparatus for exchanging full bobbins for empty bobbins on a spinning machine. A bobbin exchange apparatus is mounted in a traveling service unit and includes a component for temporarily supporting a bobbin, a component for transferring ...
05/19/1992
5107668Method of doffing packages of a textile machine as well as a textile machine
A method and apparatus is disclosed for the doffing of a yarn winding machine which is composed of several side-by-side winding stations, and wherein identical packages having the same build and yarn length are produced on the several stations. The doffin...
04/28/1992
4941314Apparatus for treating tail yarn in textile spindle assembly
Disclosed is an apparatus for treating tail yarns in textile spindle assemblies of textile spinning machines, twisters, etc., wherein a stationary upper slit ring and an axially slidable cylindrical member having a lower slit ring at an upper end thereof ...
07/17/1990
4901516Spinning device with bobbin changer
The spinning device comprises a vertically displaceable spindle bearing plate (2) carrying a rotatable spindle (1), and a cap-shaped thread guide member (6) rotatable about the spindle axis. The bobbin changer has a supporting element (11) and a bobbin ho...
02/20/1990
4870815Method to wind down a yarn package and device to perform the method
The invention concerns a spinning machine having a spindle with which to rotate a yarn package, a winding apparatus to wind the yarn on the package, and drafting rolls to feed the yarn to the winding apparatus. According to the disclosed method, the windi...
10/03/1989
4848077Package feeding method and apparatus
A package feeding method and apparatus for a yarn twisting machine having a large number of two-for-one twisters of two stage yarn supply type. A package is fed after an end of yarn of the package has been wrapped in several turns of a yarn layer non-exis...
07/18/1989
4827709Process and apparatus for loading a spinning machine with roving-supply bobbins
In the process and apparatus for loading a ring spinning machine with roving-supply bobbins at least two bobbins rows extending longitudinally on each side of the spinning machine supply roving to the work stations and a auxiliary bobbin row which can tra...
05/09/1989
4769982Apparatus for preventing unwinding of roving end applied to roving bobbin transporting system
An apparatus for preventing an unwinding of a roving end from a full package roving bobbin during the transportation thereof. This apparatus is constructed in combination with the transportation mechanism formed in the known doffing mechanism or known ove...
09/13/1988
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